The Role of Gauge Invariance in Single-Spin Asymmetries

2007/06/27 by C. J. Bomhof, Bomhof, C. J., P. J. Mulders +1
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Noncommutative and Quantum Gravity Theories #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.48550/arxiv.0706.4017

Talk presented at the 15th International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2007), April 16-20, 2007, Munich, Germany

arxiv created 2007/06/27 · openalex publication_date 2007/06/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We argue that through the Wilson lines, gauge invariance has as an effect that the hard functions in weighted spin-asymmetries in hadronic scattering processes are given by gluonic pole cross sections, rather than the usual partonic cross sections.

Related

• Single spin asymmetries and gauge invariance in hard scattering processes
• Gauge-invariance in hadronic scattering processes
• Single spin asymmetries and gluonic pole matrix elements
• Single spin asymmetries in semi-inclusive deep inelastic scattering
• Asymmetries associated with higher twists: gauge invariance, gluonic poles and twist three